core

### Auto Cylinder Construction

The following list indicates the type of cylinder that PC-DMIS constructs when the you select the specified inputs and choose the Auto option. The order of the selected features is not important. If you choose an incorrect input feature, PC-DMIS displays an error message and does not automatically construct the indicated feature type.

Five or more Features = Best Fit Cylinder

Any one Feature (other than Cylinder/Set) = Cast Cylinder

Any one Set = Best Fit Cylinder

Cylinder = Reverse Cylinder

Plane + Any Feature = Project Cylinder

Certain patterns of points (such as two rows of three equally spaced points or two rows of four equally spaced points) result in multiple ways to construct or measure a cylinder. PC-DMIS's Best Fit algorithm may construct or measure the cylinder using an unexpected solution. For best results, measured or constructed cylinders should use a pattern of points that eliminates unwanted solutions.

To allow PC-DMIS to automatically determine the best method of construction:

1. Access the Construct Cylinder dialog box (Insert | Feature | Constructed | Cylinder).

2. Select the Auto option from the list of options.

3. Select the desired feature or features.

4. Click the Create button.